JP2015071237A - Coating film transfer tool - Google Patents

Abstract

Provided is a coating film transfer tool capable of preventing meandering of a transfer tape.
A coating film transfer tool for transferring a coating film of a transfer tape having a coating film on a base tape to a transfer target, a feeding portion for feeding the transfer tape, and the transfer tape on the transfer target A transfer head having a transfer pressing part that presses the film onto the transfer target and a winding part that winds the base tape after transfer is housed in the housing, and is provided in the transfer head and / or the housing. The belt is wound around a plurality of guide parts including the transferred transfer pressing part, the surface opposite to the surface on which the coating film of the transfer tape is provided is wrapped around the belt, and the surface of the belt contacting the transfer tape is highly frictional. A coating film transfer tool comprising a material, wherein the belt rotates around the transfer head as the transfer tape travels when the transfer pressing portion is pressed against the transfer target to transfer the coating film.
[Selection] Figure 1

Description

The present invention relates to a coating film transfer tool used for transferring a transfer tape having a base film tape provided with a correction coating film, an adhesive for adhesion, a decorative coating film, and the like to a transfer target.

In such a coating film transfer tool, the transfer tape with the coating film coated on the base tape is fed out from the feeding core, and the transfer tape is pressed against the transfer object by the transfer head, whereby the coating film is transferred to the transfer tape. Then, the remaining base tape is transferred to the transfer body and wound around the winding core.

The base tape of the transfer tape provided with a coating film for correction, an adhesive for adhesion, a coating film for decoration, etc. is subjected to mold release treatment on both sides in order to peel and transfer the coating film from the base material. . In order to prevent the coating film from sticking when the transfer tape is wound around the core, the back surface on the side opposite to the coating film is subjected to a stronger release treatment. For this reason, the back surface of the transfer tape has a small coefficient of friction when in contact with other parts, and is slippery.

JP2012-006231A JP-A-8-39905

As a transfer head of a coating film transfer tool, as in Patent Document 1, a transfer head in which a transfer pressing portion that transfers a coating film from a transfer tape to a transfer target by pressing the transfer tape against the transfer target has a spatula shape. A transfer head using a transfer roll (FIG. 4) as shown in FIG. 3 and Patent Document 2 has been conventionally used. In the spatula-shaped transfer head, the back surface of the transfer tape slides on the spatula, so that it is easy to slide with respect to the spatula in the lateral direction perpendicular to the transfer tape traveling direction. For this reason, when the coating film is transferred with a spatula-shaped transfer head, the transfer tape slides left and right on the spatula, meanders, and it is difficult to transfer the coating film straight to the transfer target.

In addition, in a transfer head using a transfer roll as the transfer head, when the transfer tape is pressed by the transfer head and the coating film is transferred to the transfer object, the transfer roll rotates as the transfer tape travels. The meandering on the transfer roll of the transfer tape is smaller than that of the transfer head. However, since the distance that the transfer tape travels in contact with the transfer roll is short, even a transfer head using the transfer roll is not sufficient as a means for reducing the meandering of the transfer tape. Increasing the outer diameter of the transfer roll increases the distance that the transfer tape travels in contact with the transfer roll, thereby increasing the effect of preventing the meandering of the transfer tape. In addition to an increase in the size of the film transfer tool itself, there are also problems such as difficulty in seeing the transfer position.

As a means for reducing the meandering of the transfer tape at such a transfer pressing portion, there is a transfer head in which the surface of the transfer roll is made of a material having a large friction coefficient such as rubber. By increasing the coefficient of friction of the surface of the transfer roll, it is difficult for the transfer tape to slide left and right on the transfer roll, and the meandering of the transfer tape at the transfer pressing portion can be reduced. However, even if a transfer head with a large friction coefficient on the surface of the transfer roll is used, the transfer tape is prevented from meandering only by the transfer pressing portion, so that the transfer tape starts to meander before reaching the transfer pressing portion. In such a case, the meandering of the transfer tape could not be prevented, which was insufficient as a means for preventing the meandering of the transfer tape.

When the transfer tape meanders, the transfer tape is displaced laterally with respect to the transfer head, and the transfer tape comes into strong contact with the tape regulating member of the transfer head that guides the transfer tape. When the transfer tape comes into strong contact with the tape regulating member, the transfer tape end portion is broken or the transfer tape end portion is damaged. If you use a transfer tape that has a broken edge or a scratched coating film on the edge, the transferred coating film will have streaks on the surface or scratched edges. There is a problem. Further, since the transfer tape meanders, the transfer head itself can easily meander, and it is difficult for the user to pull the transfer head straight. There is also a problem that the transfer head advances in an oblique direction with respect to the direction intended to be transferred by the user, and the transferred coating film meanders.

The present invention has been made in view of the problems of the conventional coating film transfer tool as described above, and the problem to be solved by the present invention is to prevent meandering of the transfer tape without enlarging the transfer head. It is providing the coating-film transfer tool which has a transfer head which can do.

1st invention is the coating-film transfer tool for transferring the said coating film of the transfer tape which provided the coating film in the base material tape to a to-be-transferred body, Comprising: The feeding part which pays out the said transfer tape, The said transfer tape A transfer head having a transfer pressing portion that presses the transfer member onto the transfer target body and transfers the coating film to the transfer target member, and a winding portion that winds up the base tape after transfer is housed in a housing. A belt is hung on a plurality of guide portions including the transfer pressing portion provided on the transfer head and / or the casing, and a surface opposite to the surface on which the coating film of the transfer tape is provided is hung on the belt. The surface of the belt that comes into contact with the transfer tape is made of a high-friction material, and when the transfer pressing portion is pressed against the transfer target and the coating film is transferred, the belt is moved along with the running of the transfer tape. Specially rotating around the transfer head A coating film transfer tool according to.

A second invention is the coating film transfer tool according to the first invention, wherein the high friction material is made of natural rubber, synthetic rubber, or a mixture containing these.

A third aspect of the present invention is the coating film transfer tool according to the first or second aspect, wherein the surface of the belt that is in contact with the guide portion is made of a slippery material or is subjected to a slippery process. .

A fourth invention is the coating film transfer tool according to the first or second invention, wherein the belt is wound around a plurality of rolls rotatably held by the guide portion.

In the coating film transfer tool of the present invention, the belt rotates around the transfer head as the transfer tape runs due to the frictional force between the back surface of the transfer tape and the belt. Since the transfer tape runs in contact with the belt and the frictional force between the back surface of the transfer tape and the belt is large, the transfer tape is difficult to slide against the belt. For this reason, the transfer tape does not meander with respect to the belt. Further, since the belt is a short ring of the transfer head portion, the belt rotates without meandering around the transfer head with respect to the transfer head. As a result, the transfer tape does not meander with respect to the transfer head, and the coating film can be transferred straight.

If means for preventing meandering of the transfer tape is provided not only at the transfer pressing part of the transfer head but also before and after the transfer pressing part, meandering of the transfer tape at the transfer pressing part can be more reliably prevented. As a conventional technique, there is a transfer head in which the friction coefficient of the surface of the transfer roll is increased. Increasing the friction coefficient of the surface in contact with the transfer tape is effective in preventing the meandering of the transfer tape. However, if the coefficient of friction of a member that does not move with the transfer tape, such as the transfer pressing portion of the spatula-shaped head, is increased, the running resistance of the transfer tape is increased, causing the transfer tape to run poorly. Therefore, the present inventor has provided a member that contacts the transfer tape and travels as the transfer tape travels, so that the transfer tape can be more meandered without increasing the travel resistance of the transfer tape as much as possible. The inventors have found that it can be surely prevented and have come to make the present invention.

Coating film transfer tool A according to the first embodiment of the present invention Coating film transfer tool B according to the second embodiment of the present invention The figure which shows the spatula-shaped transfer head of the conventional coating-film transfer tool The figure which shows the transfer head using the transfer roll of the conventional coating film transfer tool

The coating film transfer tool A which is 1st Embodiment of this invention is shown in FIG. FIG. 1A is a front view of the coating film transfer tool A with the cover removed, and FIG. 1B is a bottom view of the coating film transfer tool A with the cover set. FIG.1 (c) is MM sectional drawing of Fig.1 (a).

As shown in FIG. 1, the coating film transfer tool A is composed of a casing made up of a case 1 and a cover 2, a feeding core 3 around which a transfer tape T coated with a coating film is wound, a coating film such as paper. The transfer head 4 for transferring to the transfer body, the winding core 5 for winding the substrate tape T1 after the coating film is transferred, the O-ring 6 for transmitting the rotation of the feeding core 3 to the winding core 5, and the transfer head 4 However, the present invention is not limited to this, and has a transfer tape feeding portion and a winding portion for winding the remaining base tape to which the coating film is transferred. Any configuration may be used as long as the coating film is transferred from the transfer tape by a transfer head wound around a belt.

As shown in FIG. 1A, the transfer head 4 of the coating film transfer tool A is provided with a guide portion 48 that constitutes a transfer pressing portion 41, and a fixing boss 11 that fixes the transfer head 4 to the case 1. Is provided. The inner peripheral surface of the belt 7 is hung on a fixed boss 11 serving as the guide portion 48 and the other end guide portion.

The transfer tape T is wound around the transfer head 4 from above the belt 7. The back surface of the transfer tape T comes into contact with the outer periphery of the belt 7 after being fed from the feeding core 3, passing through the transfer pressing portion 41 from the fixed boss 11, and returning to the fixed boss 11 again.

The belt 7 is made by melting and extruding a material selected from natural rubber, synthetic rubber, or a rubber containing a mixture thereof, or a plastic film such as polyethylene terephthalate polyester or polyethylene naphthalate polyester from an annular die. Can be used.

When a plastic film such as polyethylene terephthalate polyester is used for the belt 7, a layer of a high friction material made of natural rubber, synthetic rubber, or a mixture containing these is provided on the outer peripheral surface of the belt 7 in contact with the transfer tape. . As a method of providing a layer of a high friction material, it can be obtained by vulcanizing unvulcanized rubber and bonding the vulcanized rubber and a plastic film. It can be formed by coating and drying. Examples of rubber materials when a high friction material layer is provided by vulcanization include natural rubber, silicone rubber, ethylene propylene rubber, acrylonitrile butadiene rubber, styrene butadiene rubber, chloroprene rubber, acrylic rubber, fluoro rubber, and polyurethane rubber. Is done. In addition, a thermoplastic elastomer is suitable as a rubber material when a high friction material layer formed by coating and drying is provided, and examples thereof include polyester-based, polyamide-based, and polyolefin-based thermoplastic elastomers.

  The thickness of the high friction material layer is preferably in the range of 100 to 500 μm. More preferably, it is the range of 200-300 micrometers. If it is less than 100 μm, the coefficient of friction with the transfer tape decreases, and if it exceeds 500 μm, the rigidity of the belt increases, and the outer diameter of the guide portion 48 having a small diameter cannot be surely met, and the periphery of the transfer head is smooth. Cannot rotate.

Since the surface of the belt 7 in contact with the transfer tape is made of a material having a surface friction coefficient larger than that of a plastic film such as natural rubber, synthetic rubber, or a mixture thereof, it is large even between the back surface of the transfer tape T. A frictional force is generated. For this reason, the transfer tape T in contact with the belt 7 is almost in the lateral direction with respect to the belt 7 until it passes through the transfer pressing portion 41 from the fixed boss 11 and returns to the fixed boss 11 again. It runs with the belt 7 without deviation.

On the other hand, the surface of the belt 7 on the side in contact with the guide portion 48 and the fixed boss 11 is provided with a slipper layer coated with a slippery material selected from silicone resin, fluororesin and the like. Against slippery. The material and thickness of the slipping layer are preferably the same as those of the separation treatment on the back surface of the transfer tape T.

When rubber such as natural rubber is used for the belt 7, it is preferable that the belt 7 has no slack when it is wound around the guide portion 48 and the fixed boss 11, and the generated elongation is small. The elongation of the belt 7 when it is wound around the guide portion 48 and the fixed boss 11 is preferably within 3% of the inner peripheral length of the belt 7 and more preferably within 1.5%. When the elongation of the belt 7 exceeds 3%, the force by which the belt 7 presses the guide portion 48 and the fixed boss 11 increases, and the belt 7 does not rotate smoothly around the transfer head 4.

When a plastic film such as polyethylene terephthalate polyester is used for the belt 7, the belt 7 hardly deforms elastically, so that it is difficult to hang around the guide portion 48 and the fixed boss 11 without slack. Therefore, it is preferable to provide a mechanism for applying tension to the belt 7. Although a mechanism for applying tension is not shown, a mechanism for applying tension to the belt 7 by pushing the inner peripheral surface of the belt in the outer peripheral direction by elastically deforming the case can be used.

When the belt 7 is rubber, the thickness of the belt 7 is preferably 0.5 mm or more and 1.5 mm or less, and more preferably 0.8 mm or more and 1.2 mm or less. If it is less than 0.5 mm, the belt 7 expands and contracts during running, and the periphery of the transfer head cannot be smoothly rotated. On the other hand, if it exceeds 1.5 mm, the rigidity of the belt 7 increases, and it is impossible to reliably follow the outer diameter of the guide portion 48 having a small diameter, and the periphery of the transfer head cannot be smoothly rotated.

When a plastic film such as polyethylene terephthalate polyester is used for the belt 7, the thickness of the plastic film is preferably 0.03 mm or more and 0.2 mm or less, more preferably 0.08 mm or more and 0.15 mm or less. If it is less than 0.03 mm, it is difficult to manufacture and handle the belt 7. On the other hand, if it exceeds 0.2 mm, the rigidity of the belt 7 is increased, and the outer diameter of the guide portion 48 having a small diameter cannot be reliably met, and the periphery of the transfer head cannot be smoothly rotated.

As shown in FIG. 1B, tape restricting portions 42 for preventing meandering of the transfer tape T are provided on both the left and right sides of the transfer head of the coating film transfer tool A. The case 1 and the cover 2 are also provided with a case inner surface 12 and a cover inner surface 22 that prevent the transfer tape T from meandering. The width of the belt 7 is smaller than the distance between the left and right tape restricting portions 42 and the distance between the case inner surface 12 and the cover inner surface 22 (hereinafter referred to as the distance between the inner surfaces). The dimensional difference between the gap and the width of the belt 7 is preferably 0.1 mm or more and 0.3 mm or less, and more preferably 0.1 mm or more and 0.2 mm or less. The belt 7 does not meander with respect to the transfer head 4 and is rotated straight around the transfer head by designing the gap between the tape regulating portions 42 and the gap between the inner surfaces and the width of the belt 7 to be small. be able to.

As described above, the elongation generated in the belt 7 when hung on the guide portion 48 and the fixed boss 11 is reduced, and the gap between the tape regulating portions 42 and the gap between the inner surfaces and the width difference of the belt 7 are also reduced. By making it smaller, the belt 7 runs straight without meandering on the transfer head. Further, the transfer tape T in contact with the belt 7 travels with the belt 7 without being substantially displaced laterally with respect to the belt 7. Therefore, the transfer tape T can also run straight without meandering with respect to the transfer head.

The width of the transfer tape T is smaller than the width of the belt 7, and the dimensional difference between the width of the transfer tape T and the width of the belt 7 is preferably 0.1 mm or more and 0.3 mm or less, and preferably 0.1 mm or more and 0. More preferably, it is 2 mm or less. When the dimensional difference between the width of the transfer tape T and the width of the belt 7 exceeds 0.3 mm, the width of the transfer tape T becomes smaller than the distance between the tape regulating portions 42 of the transfer head 4 and the distance between the inner surfaces. The effect of preventing the meandering of the transfer tape T by the tape regulating portion 42 and the case inner surface 12 and the cover inner surface 22 is reduced. When the dimensional difference between the width of the transfer tape T and the width of the belt 7 is less than 0.1 mm, the end portion of the transfer tape T easily falls off from the belt 7, and the coating film at the end portion of the transfer tape T is applied to the transfer target. Without being transferred, it tends to cause transfer failure.

The coating film transfer tool B which is embodiment of this invention is shown in FIG. 2A is a front view of the coating film transfer tool B with the cover removed, and FIG. 2B is a bottom view of the coating film transfer tool B with the cover set. FIG.2 (c) is MM sectional drawing of Fig.2 (a).

The coating film transfer tool B does not have the separate transfer head 4, and a roll 44 is rotatably held by three roll shafts 45 provided directly on the case 1. The coating film transfer tool A is the same as the coating film transfer tool A except that the belt 7 is wound around.

In the case 1 of the coating film transfer tool B, as shown in FIG. 2 (a), three rolls 44 can be rotated at two locations that form a triangular shape with the transfer pressing portion 41 and the transfer pressing portion 41. A roll shaft 45 for holding is provided. In the portion corresponding to the transfer head of the coating film transfer tool B, the rolls 44 are mounted on the three roll shafts 45, the belt 7 is wound around the three rolls 44, and the transfer tape T is hung on the outside of the belt 7. After turning, the cover 2 is attached, so that it can be assembled.

The cover 2 of the coating film transfer tool B is provided with a hole at a position corresponding to the place where the roll shaft 45 of the case 1 is provided. When the cover 2 is attached to the case 1, the tip of the roll shaft 45 is covered with the cover 2. The roll 44 is in a state of being rotatably supported by both the case 1 and the cover 2. Further, the gap between the inner surface of the case 1 and the cover 2 where the belt 7 is mounted is larger than the width of the belt 7, similar to the tape regulating portion 42 of the transfer head of the coating film transfer tool A, and between the inner surfaces. The dimensional difference between the distance and the width of the belt 7 is preferably 0.1 mm or more and 0.3 mm or less, and more preferably 0.1 mm or more and 0.2 mm or less. The belt 7 rotates around the three rolls 44 without meandering with respect to the case 1 and the cover 2 by designing the dimensional difference between the distance between the inner surfaces and the width of the belt 7 to be small.

When rubber such as natural rubber is used for the belt 7, it is preferable that the belt 7 has no slack when it is wound around the three rolls 44, and the resulting elongation is small. The elongation of the belt 7 when it is wound around the three rolls 44 is preferably 0.5% or more and 3% or less of the inner peripheral length of the belt 7, and more preferably 0.5% or more and 1.5% or less. When the elongation of the belt 7 is less than 0.5%, the belt is loosened and does not rotate smoothly. If the elongation of the belt 7 exceeds 3%, the force with which the belt 7 presses the roll 44 increases, and the belt 7 does not rotate smoothly.

When a plastic film such as polyethylene terephthalate polyester is used for the belt 7, it is preferable to provide a mechanism for applying tension to the belt 7, as with the coating film transfer tool A. Although the illustration of the mechanism for applying the tension is omitted, there is a mechanism in which one of the three rolls pushes the inner peripheral surface of the belt in the outer peripheral direction to apply the tension to the belt 7 by elastic deformation of the case. preferable. When the roll presses the belt, the increase in running resistance of the belt 7 can be minimized.

Since the belt 7 of the coating film transfer tool B is made of a material having a large surface friction coefficient like the coating film transfer tool A, a large frictional force is generated between the belt 7 and the back surface of the transfer tape T. For this reason, while being in contact with the belt 7, the transfer tape T travels with the belt 7 without being substantially displaced laterally with respect to the belt 7.

In the coating film transfer tool A, a slipping layer is provided on the surface of the belt 7 that comes into contact with the guide portion 48 and the fixed boss 11, but in the coating film transfer tool B, the roll 44 rotates as the belt runs. Therefore, it is not necessary to provide a slipping layer on the surface of the belt 7 that contacts the roll 44.

As shown in FIG. 2A, in the coating film transfer tool B, after the back surface of the transfer tape T fed from the feeding core comes into contact with the belt 7 on the roll 44, the transfer pressing portion 41 is passed through the opposite side. The vehicle travels in contact with the belt 7 until it passes over the roll 44. Similarly to the coating film transfer tool A, the coating film transfer tool B has a great effect of preventing meandering of the transfer tape T because the distance between the back surface of the transfer tape T and the belt 7 is long.

A, B: Coating film transfer tool
T: Transfer tape T1: Base tape 1: Case 11: Fixed boss 12: Case inner surface
2: Cover 22: Cover inner surface 3: Feeding core 4: Transfer head 5: Winding core 6: O-ring
7: Belt 41: Transfer pressing part 42: Tape regulating part 44: Roll 45: Roll shaft 48: Guide part

Claims (4)

A coating film transfer tool for transferring the coating film of a transfer tape provided with a coating film on a base tape to a transfer target, a feeding portion for feeding out the transfer tape, and the transfer tape as the transfer target A transfer head having a transfer pressing portion for pressing the coating film onto the transfer target body and a winding portion for winding the base tape after transfer are housed in a housing, and the transfer head and / or A belt is hung on a plurality of guide portions including the transfer pressing portion provided on the housing, and a surface opposite to the surface on which the coating film of the transfer tape is provided is hung on the belt, The surface in contact with the transfer tape is made of a high-friction material, and when the transfer pressing portion is pressed against the transfer object and the coating film is transferred, the belt moves around the transfer head as the transfer tape runs. Coating film characterized by rotating Utsushigu. The coating film transfer tool according to claim 1, wherein the high friction material is made of natural rubber, synthetic rubber, or a mixture containing these. The coating film transfer tool according to claim 1 or 2, wherein a surface of the belt that contacts the guide portion is made of a slippery material or is subjected to a slippery process. The coating film transfer tool according to claim 1, wherein the belt is wound around a plurality of rolls rotatably held by the guide portion.

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